Condenser.



PATENTED DEG. 12, 1905.

Jn F. GRACE. GONDENSER.

APPLIUATION FILED 0012.1, 1904.

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ENTTE sTATEs PATENT oEEioE.

JOHN F. GRACE, OF NEW YORK., N. Y., ASSIGNOR TO HENRY R. WORTH- INGTON, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

CONDENSER. i

Specication of Letters Patent.

Patented Dec. 12, 1905.

Application filed October l, 1904. Serial No. 226.763.

T0 @ZZ whom, it may concern,.-

Be it known that I, JOHN F. GRACE, a citizen ofthe United States, residing at New York city, county of Kings, and State of New York, have invented certain new and useful Improvements in Condensers, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to that class of surface condensers in which the air and uncondensed vapors are withdrawn from the condenser separately from the water of condensation, the especial object of the invention being to provide a condenser construction by which the amount of liquid withdrawn with the air from the lower part of the condenser may be reduced.`

The especial feature of the invention consists in arranging the condenser-tubes so that tubes of successive rows will deliver the water toward the outside of the condenser, leaving a space at the middle ofthe condenser through which the water of condensation does not fall and from which the air may be Withdrawn comparatively free from moisture.

In the accompanying drawings, forming a part of this speciiication, the invention is shown as applied in preferred forms to condensers of a well-known type, and these constructions will now be described in detail and the features forming the invention then specically pointed out in the claims.

In the drawings, Figure 1 is a sectional elevation of a condenser plant with a surface condenser embodying the invention. Fig. 2 is a cross-section of the condenser of Fig. 1. Fig. 3 is a cross-section of a condenser, showing a slightly-modified construction. Fig. 4 is a detail illustrating-the movement of the water through the condenser.

In the drawings, A is the condenser, B the pump for withdrawing the water of condensation, (shown as a centrifugal or turbine pump,) as in United States Letters Patent No. 725,212, dated April 14, 1903, and C the air-pump for withdrawing the air. The steam enters the condenser A through the steam-inlet l0, and the water of condensation collects in the reservoir 11 at the bottom of the condenser and passes to the pump B through discharge-pipe 12. The steam is condensed by contact with the tubes a, through which the condensingwater passes from inlet-chamber 13 at one end to outlet-chamber 14 at the opposite end, the usual partitions 1 being used in the chambers 13 14 to divide the tubes a into three groups with the water passing successively through these groups, the water entering at4 the bottom of the inlet-chamber 13 and being delivered from the top of chamber 14. The air is drawn from the lower part ofthe condenser A by pump (l through air-pipe 15, which enters the upper part of the well 11, and in the form shown bends upward and extends a short distance into the body of the condenser. l

Referring now to the special feature of the invention, the tubes a, as shown clearly in Fig. 2, are not arranged with the centers of tubes of successive rows directly under each other; but the tubes of successive rows are placed slightly out of line vertically, so that the water iiows around the side of one tube and drops from the bottom onto the side of the next tube instead of onto the center of the next tube, and thus the Water passing over the successive rows of tubes is led outwardly from the center and, as shown in Fig. 2, leaves a vertical space in the middle of the condenser above the pipe 15, through which the water of condensation does not fall. The tubes surrounding the top of the air-pipe 15 also form an efficient air-cooler, the full effect of the cold incoming condensing-water being secured, as there is substantially no heating of these tubes by uncondensed steam or water of condensation.

The construction shown in Fig. 3 is the same at that shownin Fig. 2 except that it is adapted for condensers in which the partitions 1 are of such thickness that it is desirable to omit rows of tubes opposite them. In this case the rst rowof tubes below the partition should be oiset, so as to receive on the side the water delivered from the last row above the partition, as illustrated in Fig. 3.

It will be understood that the invention is not to be limited to the form or arrangement of the condenser or condensing surfaces shown, but that these may be varied and various modifications made without departing from the invention as defined by the claims.

What I claim is-` 1. In a surface condenser, the combination with the casing and condensing-water passages, of condensing-surfaces cooled by the condensing-water and arranged to conduct IOO the water ot' condensation sidewise as it passes downward over the condensing-surfaces and to provide a space at the bottom of the condenser frorn above which the water of condensation is conducted by the condensing-surfaces, and an air-discharge pipe entering said space.

2. In a surface condenser, the combination with the casing and condensing-water passages, of condensing-surfaces cooled by the condensing-water and arranged to conduct the water of condensation outwardly from the center 'toward the sides of the condenser-casing and to provide a central space from above which the water of condensation is conducted by the condensing-surfaces, and an air-discharge pipe entering said space at the bottom of the condenser.

3. A surface condenser having condensingsurfaces consisting of tubes through which the condensing liquid passes with the tubes of successive rows arranged out of line with each other vertically, so that the water of condensation falls from one tube onto the side of the next lower tube whereby the water of condensation is conducted sidewise as it passes downward through the condenser, said condenser being provided with aspace from above which the water of condensation is conducted by said tubes, and an air-discharge pipe entering said space.

4. A surface condenser having condensing-- rections Jfrom the center toward the opposite sides of the condenser, so that the water of condensation falls from one tube onto the outer side of the next lower tube and is conducted outward from the center of the condenser as it passes downward over the tubes.

5. A surface condenser having condensingsurfaces consisting' of tubes through which the condensing liquid passes, with the tubes of successive rows arranged out of line with each other vertically and thus offset in opposite directions from the center toward the opposite sides of the condenser, so that the water of condensation falls from one tube onto the outer side of the next lower tube and is conducted outward from the center of the condenser as it passes downward over the tubes, and an air-discharge pipe entering the central space between the tubes.

In testimony whereof I have hereunto set Iny hand in the presence of two subscribing witnesses.

JOHN F. GRACE.

Witnesses:

C. J. SAWYER, J. A. GRAVES. 

